Upcoming fun events in Vallejo

NIGHTMARE ISLAND

On select spooky nights through the Halloween month, the historic Mare Island Ammunition Depot/ Mare Island Shoreline Heritage Preserve turns spinechilling with its Undertaker theme walk-around horror show and preserve fundraiser. Guests are encouraged to come in costume and bring flashlights. New this year is a two-part haunted house, including an upgraded Extreme Terror section with extra scary actors and live animatronics. Also new: The Hysterical Emporium will be open every night, selling weird curiosities with multiple food vendors on-site. 5 to 9 p.m. Oct. 15, 20-22, 27-29 & 31. Entry donation: Children under 5, free; age 6-plus, $10; family/group pack, 4 tickets for $30. (707) 241-4285, www.night mareislandvallejo.com.

8TH ANNUAL MAD HATTER HOLIDAY FESTIVAL

What’s not to love about the Wonderland Festival Activities that include dancing horses cavorting around giant (costumed) white rabbits? It’s part of the Alice-themed parade starting at 4:30 p.m. at Georgia St. and Sonoma Blvd. But start the fun with craft and food vendors and children's games beginning at 2 p.m. in Unity Plaza at John F. Kennedy Library, then move on to the Tree Lighting Ceremony at 6 p.m. at the library, and a finale Lighted Boat Parade on the waterfront at 6:30 p.m. Dec. 2. Events are free. www.hattervallejo.com.

8TH ANNUAL GRAND VICTORIAN HOMES TOUR OF VALLEJO

The downtown Vallejo neighborhood is known for its late 19th century architecture, including the elaborately ornamented Italianate design Daniel Webster Harrier House, built in 1870 by the founder and president of the Vallejo Bank. Come explore the gorgeous mansions, including several listed on the National Register of Historic Places. Dec. 10. Tickets $35. www.hattervallejo.com.